I picked up a MicroSizers Power Brutes truck the other day and noticed problems where I would attach it to the charging base and the charging light come on, but also the 'go' light. After a minute the charging light didn't go out, so I took it off and tried it, but it wasn't working like the battery was dead. After giving the controller a couple of whacks (as I am want to do with technology that doesn't work right) it started working like it should. But then the troubles started again after a few hours. My only guess is there's a short or something in it. Anyone else have a problem like this?